Internal fridge fan install

Discussion in 'Fridges & Ovens' started by dpsuk999, Nov 27, 2017.

  1. dpsuk999

    dpsuk999 Funster

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    Over the last few days I’ve installed internal fridge fans. I decided to fit 2 50mm x 50mm x 10mm fans onto of the fins blowing down through the fins which should distribute the cold flow of air to the bottom of the fridge. I had to first remove the fins which was a simple job of removing 8 screws. Be aware though when you remove the fins you will have to renew the heat thermal paste which transfers the heat from the fridge to the cooling pipes.

    This is the back of the fins with the old thermal paste on the back:
    BA81B28B-CC0A-4914-8421-A9968BCD6267.jpeg

    I switched the fridge on just to make sure all of the cooling pipe got very cold/frozen and it did:
    AD484FE2-C167-4209-86DB-D9E3DA2E7AB0.jpeg

    I then mounted the fans on top of the fins and thread the 12v feed through the same hole where the temperature probe goes:
    331873B1-3F5C-417E-80C5-4C4E4EADC146.jpeg

    CE5F0B2F-A960-414A-B424-D25F2A462EFA.jpeg

    I then applied new heat thermal paste to the cooling tube:
    C1741B15-0267-4254-B912-582008AB738F.jpeg

    I wired the 12v feed through a switch which I placed next to my external fridge fan switch:
    5AA666AF-68BB-4F23-BB6C-B8D3E6DC07EB.jpeg

    All finished:
    E64C088A-B975-4367-9E43-47D60868D0F4.jpeg

    I’ve yet to properly test the air circulation but as a quick test I placed 2 wireless thermometers in the fridge, one on the shelf just below the cooling fins and one in the door. The difference between them was 1.8, I then switched the fans on and within 20 mins the door thermometer was exactly the same as the shelf one.

    Dave.
     

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  2. Figaro

    Figaro Funster

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    Did you need to remove the fridge to do this ?
     
  3. dpsuk999

    dpsuk999 Funster

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    No, did it in situ. No need remove fridge, all is possible without the need to remove (y)
     
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  4. Lenny HB

    Lenny HB Funster

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    Looks neat, I fitted a 120mm fan blowing onto the fins with a plastic box beside the fan with the temerature controller in it & switch. Suprising the difference it makes but the fridge does use more gas.
    This was my install.
     
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  5. airwave

    airwave Funster

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    This is a very interesting thread , i've heard of fitting fan's to the vent's , i plan on fitting them myself for when i do a runner to spain , but not to the inside of the fridge . My fridge work's pretty well over here , but i was a bit concerned the fridge may struggle in spain . Judging from the result's , it seem's to work rather well , making this a worth while modification . I came here to research something else , but look's like i'll be taking a look at this as well .

    Thank's guy's .


    That is a very neat fit , my friend . Look's like it's fitted as standard , and has alway's been there , just the way i like it . Thank's for sharing .
     
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  6. dpsuk999

    dpsuk999 Funster

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    :xThumb:
     
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  7. dpsuk999

    dpsuk999 Funster

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    Just as a follow up on the thread, currently in Lake Garda with temperatures of 30+ and came from Croatia with temp of 33+ and I’m very pleased with the fridge temperature, fridge at 4.7 Andy freezer at -18 (the top temp is the compressor freezer I have in the garage)
     
  8. dpsuk999

    dpsuk999 Funster

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    67C73AB4-F710-4487-B812-866839C1F04A.jpeg
     
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  9. sallylillian

    sallylillian Funster Life Member

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    Out of interest where did you get the thermal paste from? We have just got back from a similar route and I think I will try the internal fans.
     
  10. dpsuk999

    dpsuk999 Funster

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    This is the paste I used, I bought 3 tubes and used just over one and a half tubes

    B6275E97-52C1-4DA8-BFC9-049EB6FBC7C5.jpeg
     
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  11. Stewart J

    Stewart J Funster

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    Dave where did you purchase the wireless thermometers from?
     
  12. dpsuk999

    dpsuk999 Funster

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  13. Stewart J

    Stewart J Funster

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  14. sallylillian

    sallylillian Funster Life Member

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    This thread caught my eye with the fan placement, I was always concerned about the space reduction in your install @Lenny HB so placing on top of the fins seemed ideal. But doh, looking yesterday I see why I cannot, our fridges are new (er) and do not have the top clearance which is a great shame as the logic of blowing down through the fins is insurmountable to my mind! So back to the Lenny plan A, did you have the fan sucking from the fins out or blowing from the fridge onto the fins?
     
  15. michndan

    michndan Funster

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    Great idea have you got a link for the fans please?
     
  16. Richard and Ann

    Richard and Ann Funster

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    Bear in mind the fans put out a small amount of heat. You might think it insignificant but when a coldroom or fridge goes down with the fans on it gets up to about 30°c.

    IMHO your better off having the fridge colder at the bottom and warmer in the top for margerine etc. Also when you open the door the fan quickly sucks warm air in/blows cold air out. Each to their own though (y)
     
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